Abstract: This paper selects the dumping site of the HuangJia ravine (to be built) as a case,which is a rock filling in Badong county that is an emigratory city of the reservoir region. Considering the engineering geological condition, hydrological geological and the characteristics of the rock filling slope, the possible damage mode of the rock filling after filling is speculated .On that basis, the un-equilibrium pushing method is used to calculate the stability of rock filling slope.Consulting the principles of rockfill dam in hydropower engineering, the comprehensive protection measures are adopted to ensure the stability of the rock filling which includes canal、revetment、rolling and supporting structure .The source of materials in the dumping site come from the waste of landslide prevention program.So,the protection design for the rock filling is a new method and approach for urban planning and environmental protection in the emigratory towns of reservoir region. It also has an important social and economic benefit.